Posts Tagged ‘ideal gas law’

The physical laws of gas

Tuesday, March 23rd, 2010

To properly absorb and understand the physiological processes involved in breathing, incorporating a simple, different physical laws governing the gas. This is a reminder level terminal S.

I – Ideal Gas Law
Gases are compressible, and expand at an elevated temperature. This law, called the ideal gas law, relates the pressure P, volume V and temperature T of a gas in the following formula:

PV = nRT where

  • n represents the number of molecules per gram of gas,
  • R is the gas constant
  • T is expressed in absolute temperature (T c 273 °)

Note that under physiological conditions “normal” correspond to 1 atmosphere is 760mmHg at 0 ° c (more…)

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